import numpy as np
import pandas as pd
from sklearn.preprocessing import StandardScaler
import tensorflow as tf
from joblib import load

class NN(object):
    def __init__(self):
        self.loaded_model = tf.keras.models.load_model('timing/my_model.keras')
        self.scaler = load('timing/scaler.joblib')

    def get_hourly_trend(self):
        """获取预测结果"""
        n_steps = 7
        df_pivot = pd.read_csv('timing/scenic_data.csv')
        x_values = df_pivot.iloc[-n_steps:]
        x_values.iloc[:, x_values.columns.get_loc('count')] = 0
        x_lasterst = x_values.values.reshape(1, n_steps, x_values.shape[1])
        predicted = self.loaded_model.predict(x_lasterst)
        predicted_counts = self.scaler.inverse_transform(predicted)
        predicted_counts[predicted_counts < 0] = 0
        hourly_trend = predicted_counts[0].astype(int).tolist()
        print(hourly_trend)

if __name__ == '__main__':
    nn = NN()
    nn.get_hourly_trend()
